Tuning E3D Hemera with Revo
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I got a E3D Revo kit for my Hemera a few months ago, and I am just not getting around to correctly configuring it.
I have it installed an wired up, but I am having trouble getting it to tune properly. I have attempted a few times running M303 T0 S205 (with various temps for the S value), and it has either failed, or gotten stuck and just sat at tuning for well over an hour.
Error messages:
- Warning: heater behaviour was not consistent during tuning
- Warning: Auto tune of heater 1 failed due to bad curve fit (R=10.223, 1/C=0.0050:0.0263, D=2.2)
I am running "RepRapFirmware for Duet 2 WiFi/Ethernet 3.3 (2021-06-15)".
Not sure what to try next. I would appreciate any advice!
Thanks!
Configuration:
; Configuration file for Duet WiFi (firmware version 3.3) ; executed by the firmware on start-up ; ; generated by RepRapFirmware Configuration Tool v3.3.4 on Sat Oct 09 2021 23:56:58 GMT-0400 (Eastern Daylight Time) ; General preferences M575 P1 S1 B57600 ; enable support for PanelDue G90 ; send absolute coordinates... M83 ; ...but relative extruder moves M550 P"500x500" ; set printer name M669 K1 ; select CoreXY mode ; Network M552 S1 ; enable network M586 P0 S1 ; enable HTTP M586 P1 S0 ; disable FTP M586 P2 S0 ; disable Telnet ; Drives M569 P0 S1 ; physical drive 0 goes backwards M569 P1 S0 ; physical drive 1 goes backwards M569 P2 S1 ; physical drive 2 goes backwards M569 P4 S1 ; physical drive 4 goes forwards M584 X0 Y1 Z2 E4 ; set drive mapping M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation M92 X80.00 Y80.00 Z1259.84 E420.50 ; set steps per mm M566 X900.00 Y900.00 Z100.00 E2000.00 ; set maximum instantaneous speed changes (mm/min) M203 X8000.00 Y8000.00 Z120.00 E5000.00 ; set maximum speeds (mm/min) M201 X1200.00 Y1200.00 Z400.00 E5000.00 ; set accelerations (mm/s^2) M906 X1700 Y1700 Z2000 E1330 I30 ; set motor currents (mA) and motor idle factor in per cent M84 S30 ; Set idle timeout ; Axis Limits M208 X0 Y0 Z0 S1 ; set axis minima M208 X490 Y490 Z875 S0 ; set axis maxima ; Endstops M574 X1 S1 P"xstop" ; configure switch-type (e.g. microswitch) endstop for low end on X via pin xstop M574 Y2 S1 P"ystop" ; configure switch-type (e.g. microswitch) endstop for low end on Y via pin ystop M574 Z1 S2 ; configure Z-probe endstop for low end on Z M591 D0 P1 C"e1stop" S1 ; configure filament endstop for e1 extruder on low end ; Z-Probe / Compensation M950 S0 C"exp.heater3" ; create servo pin 0 for BLTouch M558 P9 C"^zprobe.in" H5 F120 T6000 ; set Z probe type to bltouch and the dive height + speeds G31 P500 X0 Y-35.56 Z2.471 ; set Z probe trigger value, offset and trigger height M557 X25:475 Y25:450 S25 ; define mesh grid M376 H5 ; Heaters M308 S0 P"bedtemp" Y"thermistor" T100000 B4725 C7.060000e-8 ; configure sensor 0 as thermistor on pin bedtemp M950 H0 C"bedheat" T0 ; create bed heater output on bedheat and map it to sensor 0 M307 H0 B1 S1.00 ; enable bang-bang mode for the bed heater and set PWM limit M140 H0 ; map heated bed to heater 0 M143 H0 S120 ; set temperature limit for heater 0 to 120C M308 S1 P"e1temp" Y"thermistor" T100000 B4138 ; configure sensor 1 as thermistor on pin e1temp M950 H1 C"e1heat" T1 ; create nozzle heater output on e1heat and map it to sensor 1 M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit M143 H1 S300 ; set temperature limit for heater 1 to 280C ; Fans M950 F0 C"fan0" Q500 ; create fan 0 on pin fan0 and set its frequency M106 P0 S0 H-1 ; set fan 0 value. Thermostatic control is turned off ; Tools M563 P0 S"Extruder 1" D0 H1 F0 ; define tool 0 G10 P0 X0 Y0 Z0 ; set tool 0 axis offsets G10 P0 R0 S0 ; set initial tool 0 active and standby temperatures to 0C M572 D0 S0.015 ;set pressure advance ; Custom settings are not defined M501 -
Can you post a photo of the hotend? Does the part cooling fan blow on the hotend much?
Have you tried tuning it as a heater instead of a tool?
M303 H1 S205
@mrawesome987 said in Tuning E3D Hemera with Revo:
M308 S1 P"e1temp" Y"thermistor" T100000 B4138
Also if you are using the E3D thermistor than your values are incorrect.
Try this instead
M308 S1 P"e0temp" Y"thermistor" T100000 B4725 C7.06e-8 -
@phaedrux Thanks for your help! Sorry for the late reply, got distracted with other stuff.
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My fan does blow on the hotend a little, but I don't have a picture of it right now.
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I did make a change to the M308 line as you recommended, and it seemed to help.
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I did get it to tune successfully if I tune it as a heater instead of tool.
I still don't think my problem is entirely resolved though. I preheated it to around 210, and it got to temperature, but then it dropped to 189 instantly and resulted in a heater fault. I am thinking that there may be something wrong with the thermistor (it's built into the heating cartridge on the E3D Revo). Since then, however, it's seemed to work ok.
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@mrawesome987 said in Tuning E3D Hemera with Revo:
I preheated it to around 210, and it got to temperature, but then it dropped to 189 instantly and resulted in a heater fault. I am thinking that there may be something wrong with the thermistor (it's built into the heating cartridge on the E3D Revo). Since then, however, it's seemed to work ok.
I think you should contact E3D about that. I seem to recall some issues with revo thermistors.
